Stepping Up From A Graham 2.2 On A Basis Audio Debut Deck

I went from the 2.2 to the Phantom II, upgraded it to Supreme, and then bought a second one, replacing a current-model Triplanar. So you know what my my recommendation would be. All the Phantoms are a step up from the 2.2, with each successive incarnation more so. Other than Phantoms, I’d look toward a used Kuzma 4 Point. Been wanting to try one for a while myself. Not sure it’s any better but it’s definitely a well designed and executed arm with easy adjustments and the capability to swap out cartridges easily, things I appreciate about Grahams.

@rooze : What I posted about your cartridge was thinking in that it's not the LPS.

R.

@rauliruegas I agree on arm/cart compatibility. I don't plan to use the cartridges I have on hand for the long-term. My thought is to decide on the arm and then buy a good matching cartridge. 

@solypsa the P2S on the 2.2 is 218mm, 9" effective length (pivot to stylus).

A constraint is that the arm assembly can protrude from the underside of the armboard a max of 1 1/4" before it hits the suspended plinth or sub-chasis. The dia of the hole in the armboard is 1 7/8".

I believe I'm going to need to have a disc/plate made that sits over the large diameter hole in the armboard. If I can find an arm that's secured only by a locking nut and doesn't require smaller drilled holes offset from the main hole, then I'm good as long is it doesn't exceed 3.25" from the top side of the disc/plate. And the outside diameter of the locking nut mustn't exceed 1 7/8".

As @lewm ​​​​​@jwei @wrm57 have suggested, a Phantom might be a good choice. But I'm not sure that I can take for granted the idea that it will be a drop-in replacement for the 2.2 

My next step is to find a detailed drawing for the Phantom!

May be too large but check the AudioCreative rotary lift, they have some drawings online. It might allow you to use larger variety of arms.